Guys, I'm not an expert but did spend 30+ yrs in USCG (aka Uncle Sams Confused Group) - along the way I was a Marine
Casualty Investigator, Oil
and HAZMAT pollution Investigator.
What I do know is the Gas and Diesel
have been around a very long time and if gas was accepted as a stabilizer for diesel, the mixture ratios would be in every handbook out there.
AND I know that outside of a Lab, the LEL and UEL of a random mixture of flammable products is a crap shoot - and I've seen flash points of gas as low as -14 deg F. but as a trick, I have seen a match put out in a puddle of gas
The diesel propulsion
industry is pretty mature by now and if BioBor (or similar) is recommended (and Gas is generally not) it just might be for a reason other than profit.
Lastly, as a casualty investigator, I learned over the years that very small mistakes
can make very big (and costly) casualties.